Waitomo Caverns

Nature never ceases to amaze me. Well, maybe when I see my biology textbook and the amount of work before me I'm not THAT amazed, but there are still really awesome thing out there. For example, the beetles of Waitomo.
Waitomo is a cavern in New Zealand that was thought to be just a Maori legend. Well, it's not. Thousands of bugs light up the celling above your head when you slowly drift in your boat...